MEASURING TAPE 300' OPEN REEL (FT, 1/10, 1/100). This style of fiberglass blade provided customers with accurate measurements. It has a reinforced metal crank that ensures its durability. The model has an open spool design that can be easily cleaned of dirt and debris, so it is ideal for use in dirty, dusty environments or outdoors. This tape is tough, has an easy-to-handle molded paddle handle, and is ideal for quick winding. With all these features, it is perfect for use in engineering projects, for example.